DSP Effect Designer

Voice Lab

Design your own voice effects from scratch. Combine pitch shifting, formant adjustment, reverb, EQ, and compression into unique character voices — no presets, no limits.

Available DSP Modules

Pitch Shifter

±12 semitones of pitch adjustment. Go higher for chipmunk/anime voices or lower for deep/demonic voices.

Formant Shifter

Change the timbre and resonance of your voice independently of pitch. Make a male voice sound female (or vice versa) while keeping natural pitch.

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Reverb

Add spatial depth with Room, Hall, Plate, or Cathedral reverb. Dial in decay time, damping, and wet/dry mix.

Equalizer

10-band graphic EQ. Boost presence at 3kHz for clarity, cut mud at 300Hz, or sculpt any frequency response you want.

Compressor

Even out your voice dynamics. Threshold, ratio, attack, release — full control for broadcast-quality consistency.

Noise Gate

Eliminate background noise between phrases. Adjustable threshold, attack, and release for clean, professional audio.

Example Voice Recipes

Robot Commander

Pitch: -3 semitones · Formant: +2 · Ring Modulator: 200Hz · Reverb: Plate 30% · Compression: 4:1

Best for: Sci-fi characters, gaming callouts

Ethereal Whisper

Pitch: +4 semitones · Reverb: Cathedral 60% · EQ: boost 8kHz for air · Compression: light

Best for: Fantasy roleplay, ASMR, ambient content

News Anchor

Pitch: 0 · Formant: 0 · Compression: 3:1 at -18dB · EQ: presence boost at 3kHz · Noise Gate: -35dB

Best for: Professional streaming, podcasting

Cave Demon

Pitch: -8 semitones · Formant: -4 · Reverb: Cathedral 80% · Distortion: light overdrive · EQ: bass boost

Best for: Horror games, D&D villains

Voice Lab FAQ

What is the Voice Lab?

The Voice Lab is Echo's built-in effect designer. It lets you create custom voice effects by combining DSP (Digital Signal Processing) modules — pitch shifting, formant adjustment, reverb, EQ, compression, distortion, and more. Instead of using pre-made presets, you design your own unique voice from scratch. Think of it as a modular synthesizer for your voice.

What is the difference between Voice Lab and RVC voice models?

RVC voice models use AI to convert your voice into a specific person's voice — they change your voice identity. Voice Lab uses DSP effects to modify your voice's characteristics (pitch, tone, texture) without AI. You can use both together: apply an RVC model first for identity conversion, then use Voice Lab to fine-tune the output with EQ, compression, and reverb.

What effects are available in Voice Lab?
Currently available: Pitch Shifting (±12 semitones), Formant Shifting (change voice timbre without changing pitch), Reverb (room, hall, plate, cathedral presets), Noise Gate (eliminate background noise), Compressor (even out volume), EQ (10-band graphic equalizer), and Distortion (robotic/demonic textures). More modules are added regularly.
Can I save and share my custom voices?
Yes. Voice Lab creations are saved as presets that you can switch between instantly using hotkeys. Sharing is planned for a future update — you'll be able to export your preset as a file and share it with other Echo users.
Do Voice Lab effects add latency?
DSP effects add negligible latency — typically under 1ms per effect in the chain. Even with 5-6 effects stacked, the total added latency is imperceptible. This is much faster than AI/RVC processing and can be used in the most latency-sensitive applications.

Design Your Voice

Download Echo Live and start building custom voice effects in the Voice Lab. Free during beta.